I don't know if the guy ever converted back, but I bought my eleven from a guy who had purchased it from sweetwater and after a few months couldn't get a tone he liked and sold it to me. Said you couldn't get good pro tones from it and was going to go back to tube a amps. A few months later I shot him an email and invited him to see my band. He watched from the back and after the first set complimented me on my tone and said "by the sound of it, I guess you didn't stick with the eleven for too long either." I told him to go look at my rig and he looked genuinely pissed off when he realized that all he heard was my 11r going straight to the board.